降压型直流开关稳压电源实验装置设计  

Design of experimental device for buck DC switch regulated power supply

作　　者：仲鹏达 朱江[1] 章子健 郑懿敏 杜月林[1] 

机构地区：[1]南京邮电大学自动化学院,江苏南京210023

出　　处：《实验技术与管理》2017年第9期95-99,共5页Experimental Technology and Management

基　　金：国家自然科学基金项目(61271240);江苏省高校实验室研究会实验室工作研究课题(2015SSG02);南京邮电大学党建与思想政治教育研究课题(XC216014)

摘　　要：以TI公司的同步降压控制器LM5117为主芯片,配以CSD18532KCS MOS场效应管作为驱动,辅以MC9S12XS128单片机控制构成一个开关稳压电源。该系统具有过流保护、负载识别(漏电检测)等功能,可以实现额定输入电压从13V至18V变化时输出稳压为5V,输出电流最大值达3.2A。该电源具有效率高、抗干扰性强等特点。By using the synchronous buck controller LM5117 of TI Company as the main chip,and equipped with the CSD18532 KCS MOSFET as an driver and an MC9S12XS128 MCU controller,the switch regulated power supply is set up.This system has the functions of over-current protection,the load identification（leakage detection）,etc.It can realize that the output voltage is 5V and the maximum output current reaches 3.2A when the rated input voltage changes from 13 V to 18V.The power supply has the advantages such as high efficiency,strong anti-interference,etc.

关 键 词：开关电源 LM5117同步降压控制器 过流保护 

分 类 号：TN722.1[电子电信—电路与系统]